Unit 1 Science Skills

Subtopic

Da Rules

should know

The "zero rule" The "Addition rule" The "Multiplication rule"

Scientific notation

If the number is >1 the exponent is negative

if the number is > or equal to 1 the exponent is positive

2.56X10^5=256,000

1,080 4 sig figures

0.0035 2 sig figures zeros to the left dont matter

should do

1.) express numbers using exponential (scientific) notation

2.) Express calculation results scientifically using significant figures and exponential notation

Subtopic

what is the addition and subtraction rule

fewest number of digits AFTER the decimal

how to solve problems

1)claculation

.

3)significant notation

what is the rounding rules for multiplication and division

fewest numbers of significant figures

step 1 write given value and unit on top of first box

step 2 write given value unit bottom of second box and units on top that your finding

step 3 campare units then give the largest value a 1 example' meters are bigger than cm so m gets 1

step 4 cancel and complete math, remember significant figs and scientific notation